Cathedral 9 Slot by ELK Studios

Mystery Coffins are the entire bonus engine. They drop through the 6x5 grid one row per cascade, and when any coffin hits the bottom row, every active coffin on the grid reveals the same payout symbol. Wins get paid, coffins close, nudge down one more position, then reveal again with a different symbol. This loop keeps firing until a reveal produces no wins. A single coffin near the top of the grid can cycle through four or five reveals on its way down, each one a fresh chance at scatter pay thresholds.

A 2-row Feature Reel sits above the main grid and feeds special symbols into play during cascades. Wilds, collectors, explosions, and the coffins themselves all drop from this top section. The Collector pulls every instance of one symbol type into a single cell - useful for pushing past the 8-symbol minimum. Explosions clear their column plus neighbors, making room for more Feature Reel drops. Big Symbols (2x2, 3x3, or 4x4 blocks) count as their full cell equivalent for scatter purposes, so a 4x4 counts as 16 matching symbols. At 50x through the X-iter, the Coffin Drop pre-loads mystery coffins onto the grid before the round begins. The 100x option buys a standard bonus entry, and 500x starts you in the Super Bonus with guaranteed super coffins on every drop.

Super Mystery Coffins work like regular coffins but carry multiplier values between 2x and 1000x. When they reach the bottom, those values feed into a global multiplier that persists across all subsequent bonus drops. Two or three well-placed super coffins early in a session inflate every win that follows. That persistent global multiplier, stacked on top of scatter pays counting 15+ symbols, is how the game reaches 25,000x - the highest cap in ELK's recent catalogue.

Nine payout symbols. Win on all nine during a single bonus session and the Super Bonus triggers, awarding extra free drops that start with pre-loaded super coffins. Outside the bonus, a persistent base game feature called Holy Collect builds energy from holy blockers that drop off the Feature Reel. The energy state carries between rounds at the same bet level and, when it fires, spawns 3-6 mystery coffins onto the grid with no warning.